Consider the following schema and write the following queries in relational algebra. Product(pid, pname, pcolour, price, supplier, year_manufacture) Select the records where product is 'shoes'. Select the records where product colour is 'red' and 'price' is 450. 3. Select records from Product table where supplier is 'Davidson' and price is 500 or those products manufactured after 2018 . 4.Project the columns named as pid and supplier from the Product table.
Consider the following schema and write the following queries in relational algebra. Product(pid, pname, pcolour, price, supplier, year_manufacture) Select the records where product is 'shoes'. Select the records where product colour is 'red' and 'price' is 450. 3. Select records from Product table where supplier is 'Davidson' and price is 500 or those products manufactured after 2018 . 4.Project the columns named as pid and supplier from the Product table.
Database Systems: Design, Implementation, & Management
11th Edition
ISBN:9781285196145
Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Chapter11: Database Performance Tuning And Query Optimization
Section: Chapter Questions
Problem 26P: Problems 25 and 26 are based on the following query: SELECT P_CODE, P_DESCRIPT, P_QOH, P_PRICE,...
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Consider the following schema and write the following queries in relational algebra.
Product(pid, pname, pcolour, price, supplier, year_manufacture)
- Select the records where product is 'shoes'.
- Select the records where product colour is 'red' and 'price' is 450.
3. Select records from Product table where supplier is 'Davidson' and price is 500 or those products manufactured after 2018 .
4.Project the columns named as pid and supplier from the Product table.
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